I wouldn't say it's a dream for AS Roma because after all they have a chance to do it, although maybe their chances are not bigger than Inter Milan.
We'll see whether De Rossi will bring fresh air to AS Roma or not. I won't rate his first match with AS Roma, because the time he had was very short so he didn't have much time to think about a very mature strategy with a very short introduction to the squad.
It is clear that AS Roma will have difficulty because Inter Milan this season is very strong, it is not easy to beat them.